BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 47 43.9%
2 United States 33 30.8%
3 Germany 6 5.6%
4 Hong Kong 6 5.6%
5 Australia 3 2.8%
6 Russia 2 1.9%
7 Singapore 2 1.9%
8 Korea, Republic of 2 1.9%
9 Malaysia 2 1.9%
10 Netherlands 2 1.9%
11 Portugal 1 0.9%
12 United Kingdom 1 0.9%